Crain's Detroit Business Publisher Mary Kramer talks to WJR-AM 760's Paul W. Smith about the three outlet malls planned for metro Detroit; Detroit's ability to attract large conventions like last weekend's Jehovah's Witnesses at Ford Field and one upcoming by the Islamic Society of North America; Wixom-based SuperStroke's success with its patented rubber grips for putters; a Grand Rapids-area company's entrance into the growing e-cigarette market; and the Crain's20 in Their 20s celebration Thursday at Detroit's Garden Theater.